Reboot Stops at OpenBoot Prompt When Services Cannot Be Initialized

Bug ID 6853590: Occasionally, a logical domain reboot operation stops at the OpenBoot prompt after one or more of the following messages are shown on the console:

NOTICE: Unable to complete Domain Service protocol version handshake
WARNING: Unable to connect to Domain Service providers
WARNING: Unable to get LDOM Variable Updates
WARNING: Unable to update LDOM Variable

Workaround: Boot the domain manually from the OpenBoot prompt.